Polished Ammonite Split Pair - 3.749" Cleoniceras rockinaboxopal Each tooth has been hand

Each tooth has been hand polished to enhance the natural structure of the fossil

recovered on private land in Arizona

22" fossil fragment of the Dimetrodon's iconic spine

Best of all

50" nodule of Fairburn Agate from the Minnelusa Formation in South Dakota

Polished Ammonite Split Pair - 3.749" Cleoniceras rockinaboxopal Each tooth has been handAmmonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a 3. 749" polished Cleoniceras fossil from Madagascar. The fossil has been split into a paired set to showcase the beautiful internal chambers of the shell. These internal chambers are called septa and the ammonite could fill them with air in order to float through the ocean like a balloon. After millions of years, they are now